Incandescent gas-lamp.



G. HELPS.

INCANDBSCENT GAS LAMP.

APPLICATION FILED Nov.15, 1912.

Patented Feb. 4, 1913.

GEORGE HELPS, OF ATHERSTONE, ENGLAND.

INGANDESCENT GAS-LAMP.

Specification of Letters Patent.

Patented Feb. 4,1913.

Application filed November 15, 1912. Serial No. 731,587.

To all 'whom t may concern Be it known that I, GEORGE HELPS, a sub jectof the King of Great Britain, residing at Izons Croft, Ansley,Atherstone, England, have invented a new and useful Incandescent-Gas-Lamp, of which the following is a specication.

This invention relates to improvements in incandescent gas lamps.

According to this invention the nipple tube is detachably connected tothe supply pipe so that it can be easily and quickly withdrawn from thelamp without' taking the lamp to pieces. In carrying out the inventionthe burner tube and lamp to which it is attached are provided withflanges which are connected together by hangers; these hangers servingthe double purpose of making a gas tight joint between the nipple tubeand the supply pipe, preferably by clamping the nipple tube or a blockupon it to the supply pipe, and also of enabling the lamp and burner tobe swung to one side so that the nipple tube can be withdrawn.

In the drawings illustrating the invention Figure 1 is a front elevationand Fig. 2 a side elevation. Fig. 3 is a vertical section of amodification.

In Figs. 1 and 2 the supply pipe 1 is provided with a flange 2 and theburner tube 3 is provided with a flange 4. The nipple tube 5 is screwthreaded to receive the coned block 6, the upper end of the nipple tube5 being screw threaded to receive the union 7 which screws onto the tap1a on the end of the supply pipe 1. The block 6 and union 7 of thenipple tube 5 are clamped between the flanges 2 and 4 of the supply pipe1 and burner tube 3 respectively by means of the hangers 8 and wing nuts9. The nipple tube 5 passes through a hole or stufng box in the flange4. The flange 4 is provided with trunnions 10 to receive the ends of thehangers 8. When it is desired to remove the nipple tube 5 the wing nuts9 are slackened, the union 7 is unscrewed from the burner tube 3 and itcan then be tilted and the nipple tube withdrawn. The height of thenipple tube 5 can be adjusted by screwing the block 6 up or down it.

In Fig. 3 the nipple tube 5 is provided with a block 6 which is clampedbetween the flanges 2 and 4 of the supply pipe 1 and burner tube 3respectively by means of the hangers 8 and wing nuts 9 thus making a gastight joint with the supply pipe 1 One of the hangers passes through ahole 20 in the liange 2 while the other hanger passes through the slot11 in the flange 2 so that on slackening the wing nuts 9 the hanger canbe swung clear of' the slot 11, the burner tube 3 can then be turnedaround and the nipple tube 5 withdrawn. In this case the height of thenipple tube 5 cannot be adjusted.

What I claim is j 1. In an incandescent gas lamp, a supply pipe, aburner tube movable out of alinement with the supply pipe, hangersconnecting the supply pipe to the burner tube, a nipple tube movablelaterally away from the supply tube while supported by the burner tube,removable endwise from the burner tube when thus moved away, andnia-king a gas-tight joint with the supply pipe.

2. In an incandescent gas lamp, a supply pipe, a burner tube movable outof alinement with the supply pipe, hangers connecting the supply pipe tothe burner tube, a nipple tube movable laterally away from the supplypipe while supported by the burner tube, and removable endwise from theburner tube when thus moved away and a block on the nipple tube making agas-tight joint with the supply pipe.

3. In an incandescent gas lamp, a supply pipe, a burner tube, hangersconnecting the supply pipe to'the burner tube, a nipple tube movablelaterally away from the supply pipe while supported by the burner tubeand removable endwise from the burner tube when thus moved away, andmeans carried by the hangers for holding the nipple tube in gas-tightconnection with the supply pipe.

4. In an incandescent gas lamp, a supply pipe, a burner tube, hangersconnected with the supply pipe and having a pivotal connection with theburner tube for enabling the burner tube to be swung relatively to thesupply pipe, and a nipple tube movable laterally away from the supplypipe when the burner tube is swung on its hangers and which is removableendwise from the burner tube when thus swung away from the sup- Ply rlp@5. In an incandescent gas lamp, a supply pipe, a burner tube, hangersconnecting the supply pipe to the burner tube, a nipple tube movablelaterally away from the supply pipe, removable endwise from the burnertube and making a gas tight joint with the supply pipe at Varyingheights of the nptube, a removable nipple tube, anda block ple tube, andan adjustable block upon the upon it pressed against the supply pipe bynipple tube to adjust the height of the nipthe hangers.

ple tube Within the burner. GEORGE HELPS. 5 6. In an incandescent gaslamp, a supply Vitnesses:

pipe, a burner tube, adjustable hangers for B. H. TAYLOR,

connecting the supply pipe to the burner O. J. VORTH.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

